MaddoScientisto
d62342aae1
- Added ImageCreatorImageSharp class for image creation, handling EXIF orientation, resizing, and saving images. - Replaced GDI+ dependencies with ImageSharp for cross-platform compatibility. - Introduced methods for drawing text and logos on images, including handling transparency and positioning. - Created a test plan for validating ImageCreatorImageSharp functionality, focusing on image resizing, text positioning, logo features, and EXIF orientation. - Added documentation for the test plan outlining goals, project structure, and implementation notes.
40 lines
1.4 KiB
C#
40 lines
1.4 KiB
C#
using System;
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using SixLabors.ImageSharp;
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using SixLabors.ImageSharp.PixelFormats;
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namespace MaddoShared.ImageSharpTests.Helpers
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{
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public static class PixelInspector
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{
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public static int CountNonBackgroundPixels(string path, int x, int y, int width, int height, Rgba32 background, int tolerance = 0)
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{
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using var img = SixLabors.ImageSharp.Image.Load<Rgba32>(path);
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var bx = Math.Max(0, x);
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var by = Math.Max(0, y);
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var bw = Math.Min(width, img.Width - bx);
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var bh = Math.Min(height, img.Height - by);
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if (bw <= 0 || bh <= 0) return 0;
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int count = 0;
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img.ProcessPixelRows(accessor =>
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{
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for (int yy = by; yy < by + bh; yy++)
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{
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var row = accessor.GetRowSpan(yy);
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for (int xx = bx; xx < bx + bw; xx++)
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{
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var p = row[xx];
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if (!IsApproximatelyEqual(p, background, tolerance)) count++;
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}
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}
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});
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return count;
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}
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private static bool IsApproximatelyEqual(Rgba32 a, Rgba32 b, int tol)
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{
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return Math.Abs(a.R - b.R) <= tol && Math.Abs(a.G - b.G) <= tol && Math.Abs(a.B - b.B) <= tol && Math.Abs(a.A - b.A) <= tol;
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}
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}
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}
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